Despite its big announcement on Twitter, the CN Blue member didn’t expect so many fans to greet them when they stepped off the airplane at London Heathrow Airport.

As the large groups of fans waiting for CN Blue’s arrival were unexpected, the organizers experienced a difficult time getting the singers out of the airport safely with all the exits blocked off by fans.

One staff member said, “An hour before CN Blue’s arrival, there were only 50 fans, which suddenly exploded into 400 when CN Blue’s plane landed.”

CN Blue said through its agency, “We were very thankful and happy, but honestly a bit confused. We never expected this kind of welcome.”